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Check Engine Light
The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.
7,238 Questions
How do you Fix obd code P1500?
This is not a "Generic" OBDII code.
That means that it means diferent things on diferent car makes.
How do you reset a 1999 Audi A4 check engine light?
It has to be done with a scan tool. Resetting the light without correcting the problem will be of no use as the light will come back on.
What does it mean when engine light amber color Restricted Performance comes on for a 2000 JX8?
When the check engine light is activated the resricted performace message which is like a "limp home mode" to work with the fault the vehicle will restrict timing, trans operation and throttle body response
There is two pins connector under passenger side above carpet floor. To check the error code of engine light, turn off engine, short this conector, turn on ignition switch (don't start engine), count the engine light flashing. The flashing will flash long and short. For example, two short flashings followed by three long flashings indicate error code #32. Then, check with error code to see what the problem it is. You can reset error code by pulling off fuse (farest corner close to driver) in engine compartment fuse box. You may lost clock and radio settings. Good Luck!
So where is this, when i pull back carpet all i see is this HUGE silver box, is it up under the dash, like near the blower motor? and how do i "jump" this connection? just confused?
Sounds like the catalyst in the exhaust is collapsing. High concentrations of raw unburnt fuel can cause the cat to disolve. unfortunately its the old chicken and egg theory. Has the cat broken down due to the engine only firing on a few cylinders, hence the low power or is the cat collapsing and blocking the exhaust stopping fumes escaping and slowing the engine down. I would first make sure the engine is not misfiring(it accelerates smoothly with no shuddering) I would definitely change the cat as this will be the source of egg smell and the damage will be done. Not a good idea to drive it like this as its only going to get worse and do more damage. Hope this helps
AnswerYou have either a leak in the heater core or a bad o ring on the connection to itWhat cause the service engine soon light to come on in a 1996 Geo Tracker how do you clear it?
It could be a sensor or anything it happens to a lot of cars. You can have a diagnostic done on it or first you nac remove the battery cables to reset everyhting. If it comes on again I would have a diagnostic reading done at your local mechanics shop. You can also buy the peice and do it yourself if you have the manual.
How to reset service engine light on Volvo XC90?
Any auto repair shop. They will plug in a device to your cars computer and it"ll spit out a code that tells you why the light came on. Than he will re-set the light to go off. Proceed as follows to reset the service reminder indicator (SRI): Ignition to position I
Press and hold in the reset button for the trip odometer
Ignition to position II.
Hold the reset button for the trip odometer pressed in until the original value has been reset
The information lamp lights when the reset button must be released
Release the reset button for the trip odometer within 4 seconds . The instrument gives an audible signal when resetting has succeeded
If the trip odometer is already reset, the reset button must be held in for a minimum of 10 seconds and a maximum of 14 seconds .
How to reset engine light Nissan largo 1995?
if all faults removed from engine the light should go out by itself but if not disconnect battery and wait 10 mins thenn will be out unless fault still in system
1991 240 SX check engine light problem Why does it keep coming on and then engine dies?
Have vehicle scanned to determine the problem
Where is the check engine light on a 1998 Volvo s70?
It is the one next to the service light.....second to the right.
What is fault code P0420 for a dodge neon?
Trouble code P0420 means: Catalyst Efficiency Below Normal (Bank 1)
What does p0452 nvld pressure switch sense circuit low mean and how is it normally fixed?
If I remember correctly that is a fuel tank pressure code usually meaning that your gas cap needs replacement. If the car is more than 5 yrs old it's a definite possibility.
What ODB reader can you buy to read codes on a 1992 Plymouth Laser or Mitsubishi Eclipse?
The codes from these cars and the data port are unique. You can buy a cable and palm pilot equipped with the software to read the codes on Ebay for about $50. Search for DSM datalogger.
Does the Service Engine Soon light indicate major problems?
I hope this clarified the other misinformation which is currently published and posted on the net (regarding this subject).
:Okay, pay attention please, you need to disregard that entire answer that obviously the person who wrote it made there own assesment, not according to the facts. Service engine soon is Nissan's and other manufacturers check engine light, yes they are the same. The light means your vehicle needs an engine diagnosis to pinpoint one or multiple problems. These codes appear because the emmissions, ignition and overall performance of the motor is compromised. The problem could be a run down sensor, vacuum leak or ignition(timing) problem. The code will get you looking at the right system on the vehicle but not always the exact problem. Good to pay engine Dio if unsure.
How do you turn off the maintenance required light on a 1992 Jeep Cherokee?
After much BS from several dealers I have concluded that this does require a trip to the local dealership to have their little black box attached to the on board computer so that the lamps can be turned off. They call their black box a DRB "Diagnostic Reader Box". Before 1996 this is a DRBI which I believe was the precursor to the OBD systems that are currently used. The only dealer I talked with that knew what was causing the lamp to be on (talked with 3) wanted $45 to reset it (plus undisclosed sums for other things that they may find with their black box once they hook it up). I have personally elected to remove the bulb since it doesn't impact the operation of the engine.
(A different remedy is take it to an auto parts store. Most can diagnose the problem and reset the light. Those lights are there for a reason. By removing the bulb or ignoring it larger problems can occur. Machineryman)
What year is your c-class, its not 50 differant things, if you tell me what year it is, I could narrow it down to about 5 differant things it could be for you, just let me know.
What causes the check engine light to come on in your 2000 civic Si?
Could be many things. The ECU will put out a certain signal for what is triggering the light. To read this signal you can buy a reader or most autoparts stores will do it for free. Problem with the Emissions system. The " check engine light" is by far one of the most misunderstood technological advances It is a warning light that is illuminated when there is a problem affecting the EMISSIONS of the vehicle.. Don't let it bother you as it is a good thing once you understand it. One point that was brought up a recent meeting of technicians was that the amount of hydrocarbons is greater when the gas cap is left off than when the engine is running. Hydrocarbons are part of pollution emitted as gasoline evaporates. Going a step farther, one facet of the emission system is the "Evaporative" portion. This is when the fumes from the gasoline are leaking from the system into the outside air. This is one part of the emission system that can trigger a check engine light. I would say a small percentage of the vehicles that have a check engine light are the result of a loose or inadequate gas cap. But understand that many scenarios are possible with the "check engine light" The vehicle's powertrain computer (note that some vehicles have multiple computers aside from the powertain computer) will run a series of self-tests. They will only run under certain criteria. And they are different from manufacturer to manufacturer. Some self-tests or
Try disconnecting the battery for 10 minutes to see if it will reset--if not have engine scanned Try disconnecting the battery for 10 minutes to see if it will reset--if not have engine scanned
Why is service engine soon light on in 1997 Chevrolet Venture van?
The light is on to tell you to go get to codes scanned. (A more detailed description is available in your Owners Manual.) Many auto parts stores will scan codes for free.
Check fuses
Check brake lights
Check the upper end of the brake pedal under dash area- -some have a "Vacuum Dump" switch similar to a stop light switch as a secondary safety
Check the adjustment and operation of this switch
Can you check Toyota check engine codes without special tools?
Depends on the year...if it's an OBD1 car (typically before 1996) you can manually access the codes and find out what they are by watching the "check engine" light blink. If it's an OBD2 car, then no...you have to have a code reader. The good news is that many auto parts stores will read the codes for you for free. Just be careful listening to their diagnosis.
Why does the check engine light come on in a Honda?
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
The "bus" is the wires the computer use to talk to each other. You either have a bad computer or a problem with the "bus" wires. You need a scan tool to see how many different computers(pcm, abs, cluster, airbag,....) are communicating and have codes.
